Pink Project

What is Dunaliella salina?
This is a green microalgae adapted to living in extremely salty waters, such as coastal salt marshes or hypersaline lagoons. Although it is native to regions like the Dead Sea, its ability to tolerate extreme conditions—from high salinity to strong solar radiation—makes it relevant in similar ecosystems, such as those found in coastal areas of Puerto Rico. It was named after the French scientist Michel Felix Dunal , who studied it in the 19th century.

Why is it so special?
The Dunaliella salina It is famous for producing large quantities of Beta-carotene , an antioxidant pigment that gives algae a reddish or orange hue when stressed. This compound not only protects the algae, but is also key in the food and cosmetics industry, as it is used as a natural colorant and in nutritional supplements. It is also the basis of the food chain in these saline environments, nourishing small crustaceans such as the Artemia , which is usually eaten by flamingos and when they eat it, they change their natural white color to pink.

Benefits for Puerto Rico and the world
On the island, where marine biodiversity is a source of pride, understanding species like this opens the door to sustainable projects. In the Cabo Rojo salt flats, they serve as an indicator for salt workers to know when is the best time to harvest salt. All of this, done naturally. Furthermore, their cultivation doesn't require harsh chemicals and can be done in ponds with seawater, making it an eco-friendly option for producing local natural ingredients, from vitamins to sunscreens, made with sunshine, some nutrients, and water from our coasts!

A gift of nature
The Dunaliella salina It reminds us that even in the most inhospitable corners, there is valuable life. For Puerto Rico, it represents an opportunity to explore green biotechnology (even if it's pink) and celebrate the richness of our ecosystems. The next time you see a colorful lagoon, think of this small but powerful organism!